MPLS-OAM-MIB defines the OAM feature on the source and destination ends of the detected LSP.
The OID of root objects is:
iso(1).org(3).dod(6).internet(1).private(4).enterprises(1).huawei(2011).huaweiMgmt(5).hwMpls(12).hwMplsOam(7).hwMplsOamPs(1).hwMplsOamObjects(1)